Mineral oils: processes and products – Phenolic or toxic oils
Patent
1982-10-08
1985-09-17
Gantz, D. E.
Mineral oils: processes and products
Phenolic or toxic oils
208 10, C10G 108
Patent
active
045419132
ABSTRACT:
The present invention relates to a process for hydrocracking SGE of carbonaceous material to produce light distillate, including chemical feedstocks and transport fuels.
A mixture of crushed coal and a solvent is fed to an extractor 1 wherein the solvent is heated and pressurized to form a supercritical gas. Carbonaceous material is extracted from the coal into the gas. The unextracted coal, including ash and some carbonaceous material, is separated from the SGE in solution in the supercritical solvent in a separation stage 2. The SGE in the solvent is maintained in the supercritical state and fed to a hydrocracking stage 3 wherein it is mixed with excess hydrogen. After hydrocracking, the SGE in supercritical solution is passed through a pressure let-down valve 4 to a distillation stage 5 wherein the product of the hydrocracking stage 3 is separated into gases, solvent for recycling, light distillate and material boiling above 350.degree. C. The light distillate may be further treated to produce transport fuels.
REFERENCES:
patent: T700485 (1969-04-01), Hemminger et al.
patent: 3018242 (1962-01-01), Gorin
patent: 3188179 (1965-06-01), Gorin
patent: 4019975 (1977-04-01), Uruqhart
patent: 4152244 (1979-05-01), Raichle et al.
patent: 4235702 (1980-11-01), Smith
patent: 4331531 (1982-05-01), Kuehler
patent: 4447310 (1984-05-01), Derbyshire et al.
patent: 4485003 (1984-11-01), Coenen et al.
Maddocks et al., "Coal Processing Technology: Supercritical Extraction of Coal", CEP, Jun. 1979.
"Conversion of Coal to Liquid Products Using Supercritical Extraction", Chem. Abst. 93:50189.
Maddocks et al., "Supercritical Extraction of Coal-Update", AICHE Conference, Nov. 1978.
Moore Stephen A.
Urquhart Donald B.
Coal Industry (Patents) Limited
Gantz D. E.
Johnson Lance
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